This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I have firefox 6.0.2. I cannot get the "permission manager tab" even though I have typed in "about:permissions" in the url location bar. I am given"The URL is not valid and cannot be loaded." Can you help? Thanks

  • 1 reply
  • 3 have this problem
  • 3 views
  • Last reply by cor-el

more options

I have the firefox 6.0.2. version downloaded on my Dell computer. I wanted to block a particular website, so I read the instructions on your page. I was instructed as I wrote in my question above but to no avail. Bottom line: I cannot open the Permission Manager tab.

I have the '''firefox 6.0.2.''' version downloaded on my Dell computer. I wanted to block a particular website, so I read the instructions on your page. I was instructed as I wrote in my question above but to no avail. Bottom line: I cannot open the Permission Manager tab.

All Replies (1)

more options

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).